A method for low-temperature reduction of nitrous oxide using a reductant over platinum group bi-metallic catalysts containing copper as a primary component

摘要

The present invention has an excellent effect on effectively removing nitrous oxide in exhaust gas discharged from the rear side of a gas expander including a nitric acid production plant and an adipic acid production plant in a low temperature and high space speed, using hydrogen as a reducing agent under the presence of platinum group (containing gold and silver) bi-metallic catalysts which contains copper which is a low price metal as a primary component. [Reference numerals] (AA) Dioxide removal efficiency(%); (BB) Reaction time(h)